Timeline for Questions about special $C^*$-subalgebras and ideals.
Current License: CC BY-SA 3.0
3 events
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| Mar 8, 2012 at 18:36 | comment | added | Ulrich Pennig | Okay, but still. If you have $1 \in B$, then $1 = p \cdot 1 \cdot p = p^2 = p$, so $B$ can not be unital. Or am I misinterpreting something? | |
| Mar 8, 2012 at 14:38 | comment | added | Aviv | Oh, Iam sorry, I mean that the projection $p$ is not trivial. | |
| Mar 8, 2012 at 12:41 | history | answered | Ulrich Pennig | CC BY-SA 3.0 |